Storage

Every business needs storage devices to retain, store and process data.  The storage solution a company requires will depend on the amount of data needing to be stored and the processing capability required, alongside the different types of application and how mission critical they are to the business.  For mission critical storage, Quality of Service of the storage devices will be of utmost importance.

There are different hierarchy in storage – primary, secondary, tertiary  and off-line storage.

  • Primary storage is often referred to simply as memory
  • Secondary storage is accessed via a computers input/output channel and typically refers to hard disk drives for example flash memory, floppy disks etc.
  • Tertiary storage provides a third level of storage which is usually used for archiving and large data stores e.g. tape libraries

Different types of storage

Direct Attached Storage (DAS) is a traditional mass storage that doesn’t use any network

Network Attached Storage (NAS) is mass storage attached to a computer which can be accesses over a local area network, a private wide area network or over the internet.

A Storage Area Network (SAN) is a dedicated network that provides access to consolidated, block level data storage.  SANs are primarily used to enhance storage devices such as disk arrays, tape libraries and optical jukeboxes, accessible to servers so that the devices appear like locally attached devices to the operating system.

Servers and Storage offers several different storage models including

Browse through the storage section or for more information and advice, contact the Servers and Storage team today.